The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Oct. 20, 2021
Sri International, Menlo Park, CA (US);
Karim Eldefrawy, Santa Monica, CA (US);
Nicholas Genise, Austin, TX (US);
Rutuja Kshirsagar, Blacksburg, VA (US);
SRI International, Menlo Park, CA (US);
Abstract
An encryption module and the decryption module cooperate with an identity-based key generator of users in a communication system in order to use an identity-based and certificate-based construction using two or more encryption schemes. An encrypted message is communicated between users of the communication system such that the encrypted message received by the device of the user needs keys from each of the two or more encryption schemes to be able to decrypt the encrypted message. The validation module cooperates with a limited-time of validity certificate issued from a certificate authority platform to decrypt the encrypted message via the limited-time of validity certificate. The validation module allows the decryption module to decrypt the encrypted message with the limited-time of validity certificate corresponding to an identity of the user when the user is determined to be actually validated for a period of time specified for the limited-time of validity certificate. The certificate authority platform grants the users validation.